Intellical CDC401 is a digital, graphite, 4-pole conductivity cell with a temperature sensor. This Rugged CDC401 version is built with a stainless steel body ensuring sufficient weight to the probe for an easy outside handling, the sensing part is protected by a shroud, and the connection is ensured by strong and visible yellow coloured cable onto which you can clip depth markers (optional accessories), making the CDC401 rugged models specially designed for field use. CDC401 Rugged is available with a 5, 10, 15, or 30 meters cable. The CDC401 Rugged is ideal for measuring electrical conductivity, salinity, resistivity, or total dissolved solids (TDS) in all types of external environment such as river, surface and ground waters, ponds, lakes, sea, wastewater plant, source water, drinking water reservoir for water quality, environmental and treatment process purposes.